904231 has 4 divisors (see below), whose sum is σ = 906192. Its totient is φ = 902272.

The previous prime is 904219. The next prime is 904261. The reversal of 904231 is 132409.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 904231 - 2⁷ = 904103 is a prime.

It is a super-2 number, since 2×904231² = 1635267402722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 904199 and 904208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (904201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 135 + ... + 1351.

It is an arithmetic number, because the mean of its divisors is an integer number (226548).

2⁹⁰⁴²³¹ is an apocalyptic number.

904231 is a deficient number, since it is larger than the sum of its proper divisors (1961).

904231 is a wasteful number, since it uses less digits than its factorization.

904231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1960.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 904231 is about 950.9106161990. The cubic root of 904231 is about 96.6999977542.

The spelling of 904231 in words is "nine hundred four thousand, two hundred thirty-one".